Tube frame for axminster looms



June 2, 1931. o. v. PAYNE lTUBE FRAME FOR AxuINsTER Looms Filed Nov. '21. 1927 into the hollow tubular bar frame to give supcompression spring the function of which is Patented June 2, 1931 UNITED STATES YPATENT OFFICE OSCAR V. PAYNE, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMPTON & KNOWLES LOOM. WORKS, OF WORCESTER, MASSACHUSETTS, A CORPORATION F MASSACHUSETTS TUBE FRAME Eon AXMrNsTEn. Looms Application led November 21, A19.27. Serial No. 234,591.

`hook member the lower end of which is secured to the tube frame and the upper end of which is movable relatively to the hanger or bracket to be disengaged from the transporting chain of the loom. One form of hook is made of spring steel the lower end of which is secured directly to the hanger while another form of hook is made of rigid stock and moves about a pivot pin carried by the hanger. The spring hooks occasionally break and the rigid hooks must be provided with a pivot and a relatively short spring because of the small distancebetween the hook and the hanger. It is an important object Vof my present invention to provide a rigid hook secured directly to a plunger which projects into a hollow tubular bar and is guided by one of the arms' which project into the tube h frame from the hanger.

It is a further object of my invention to provide a tube frame hangerV with an arm substantially U-shaped in form to project port for a plunger around which extends a to hold the hook normally in chain engaging position.

It is a still further object of my invention to provide a construction wherein the usual slot in the chain engaging portion of thev hanger serves to restrict or prevent angular movement of the hook around the plunger as a center.

With these and other objects in view which will appear as the'description proceeds, my

invention resides inthe combination and ar; rangement of parts hereinafter described and c set forth in theV claims. f

In the accompanying drawings wherein one form of my invention is shown,

Fig. 1 is a front elevation of one end of the tube frame having my improvements ap? plied thereto with the hook in chain engaging position, f

Fig. 2 is a view similar to Fig. 1 but with certain parts in section with the hook moved to releasing position, and

Fig. 3 isa vertical section on line 3 3 of Fig.V 2.

Referring Vto the drawings, the tube frame is formed of a hollow tubular part which is preferably rectangular in cross section as shown in Fig. 3 and there are provided a plurality of yarn tubes 11 secured in any approved manner to one of the vertical walls of the bar. The hanger H has a member 12 provided with a chain engaging tongue 13 which passes between links 14 of the transf porting chain and the hanger is further provided with a spoolA bearing portion 15 which supports a yarn spool 16. The lower portion of said hanger is provided with parallel upper and lower arms 17 and 18, respectively,

the lower arm being formed integral with member 12. The upper arm 17 may be provided with a substantially vertical leg 19 which is secured in any manner as by welding to the member 12. Screws 20 may be provided to hold the arms 17 and 18 in place in the hollow bar 10. Y

It will be seen that the chain 14 is out of longitudinal alignment with the tubular bar 10 as is clearly evident in Fig. 2.

A clutch 21 supported in any approved manner by mechanism not shownhas a lifting lip 22 positioned to engage the underside of the tube frame and lift the same when said clutch is moved from the position shown in Fig. 1 to that shown in Fig. 2. Itis to be understood that there are a number of tube frames allrcarried by the transporting chain and that they are presented one at a time to the clutch mechanism to be detached from the chain and moved to tutt forming position. The matter thus far described is of common construction and forms no part of my present invention.

In carrying my improvements into eiiect I provide a rigidhook 30 the upper end of which is provided with a head 31 normally extending over one of the Vlinks 14. Said bleek member extends deuuwardly through a slot 32 formed in the member 12 and has the lower end thereof riveted to a sliding plunger 33. The plunger extends through the leg 19 and the adjacent portion of member 12 as shown clearly to Fig. 2 and the left hand end thereof is guided by a second leg 34 formed on the'upper arm 17. Said plunger may be provided with a head 35 which limits movernent of the plunger to the left under influence of "the clutch ancl"'tl`ie plunger is further 'provided' with a washerV 36 lo-ose thereon and limited as to movement to the right as viewed in Fig. 2by pin'37. A compression spring 38 surrounds a portion of the plunger and lies between the leg 34 and the washer 36 and tends normally to move the hook member 30 to the right or to the position shown in Fig. 1.

In operation the clutch engages the hook member 30 after the lip 22 has lifted the tube frame slightly and continued movement of the clutch to the left will move the head off the link 14, the hook member being guided bythe plunger 33. After the tube frame has beenidipped to form a row of tufts it will be raised by mechanism not shown and the clutch will be moved to the right from the position shown in Fig. 2 to that shown in Fig. 1, and as it does so the spring 38 will move the hook member 30 back to normal position. Inasmueh as `the plunger 33 is substantially round in cross section as shown in Fig. '3 it is necessary to limit angular movement of the hook member and this result is accomplished the walls of the slot 32 formed in the memlFrom the foregoing it will be seen that I have provided a simple yet rugged hook member fora tube frame hanger so constructed as to slide relatively to the tube frame and having attached thereto a plunger which extends into the tube frame and is guided by parts of the hanger which are of usual`construction. It will 'further be seen that the spring 38 acts on the plunger to hold the hook member yieldingly in normal position and also that'the slot 32fin the hanger member 12 serves to prevent improper angular movement of the hook member about the axis of the plunger.

Having thus described my invention it will be'seen that Ychanges and m'odiiicationsmay be madeV therein by 'those skilled in the art without departing from the spirit and scope of the invention and I do not Wish to be limited to the details herein disclosed, but what I claim is:

1^. In an Axminster tube frame having a hollow tubular bar, and a hanger provided with parallel arms projecting into and secured to the hollow bar, a pairof parallel spaced legs formed on one of the arms located inthe tubular bar and extending transversely of the latter, a plunger slidably mounted in said legs, resilient means tending to hold said plunger in normal Outward positionrelatively to the hanger, and a rigid hook member mounted directly on the plunger and moving therewith, said hanger having a slot spaced from the plunger to receive and guide the upper portion of the hook.

' 2. In an Axminster tube frame having a hollow tubular bar, and a hanger provided with parallel arms projecting into and secured to the hollow bar, a plunger substantially circular in cross sect-ion, a. pair of spaced parallel legs projected from one of the arms and extending transversely of and located in the hollow bar, said plunger being supported by and slidingly mounted in said legs, a coil spring surrounding a portion of the plunger and having one'end in engagement with one of the legs and having the other end operatively connected to the plunger, and a rigid hook member secured directly to the plunger and moving with the latter and extending through a slot formed in the hanger to prevent movement of said hook member around the axis ofthe plunger.

3. In an Axminster tube frame for a loom operating with a transporting chain, a hollow bar normally spaced from the chain, a hanger secured to the bar and engaging the chain, guide surfaces rigid with and located within the hollow bar, a plunger supported by the bar to slide longitudinally along said surfaces, and a hook member rigid with the plunger deriving its chief support from the plunger and having a portion to engage the chain, said hook Imember being restrained against free angular movement around the axis of the plunger by engagement of a portion of the hanger adjacent the c hain.

4. In an Axminster tube frame for a loom operating'with a transporting chain, a hollow bar normally spaced from the chain, a hanger secured to the bar and engaging the chain, guide surfaces rigid With and located within the hollow barv a plunger slidably mounted in the hollow bar within the latter along an axis substantially parallel to the length of the hollow bar and in sliding contact With said surfaces, and a hoolr member secured to the plunger deriving its chief support from the plunger and extending substantially at right angles therefrom in a direction toward the cha-in, said hook member being restrained as to angular movement by engagement with the hanger and having a portion to overhang a part of the transporting chain.

5. In an Axminster tube frame for a loom operating with a transporting chain, a hollow bar normally spaced from the chain, a hanger secured to the bar and engaging the chain,guide surfaces rigid with and located within th-e hollow bar, a plunger supported by the bar to slide longitudinally alongsaid surfaces, and aV hook member supported by the plunger deriving' its chief support from the plunger and having a portion to' engage the chain, said hook member being restrained against free angular movement around the axis of the plunger by engagement of a p0rtion of the hanger adjacent the chain.

6. In a tube frame for an Axminster loom operating with a transporting chain, a holloW tubular barv out of longitudinal alignment with the cha-in, longitudinally aligned guide means on the bar, a plunger slidable on the guide means, a hook rigid With the plunger and extending laterally from the bar to engage the chain, and a resilient member surrounding the plunger and located in the bar and acting on the plunger to hold the hook normally in engagement With the chain, the hook deriving its chief support from the plunger and guide means.

7 In a tube frame for anAxminster loom operating with a transporting chain, a hol- 10W tubular bar out of longitudinal alignment with the chain, longitudinally spaced parallel guide means rigid with the bar, a slide element movable on the guide means, a sliding hook rigid with the slide element and extending laterally rom the bar to engage the chain, and a resilient member surrounding the sliding element and located in the bar and acting on the sliding element to hold the hook normally in engagement with the chain, the hook deriving its chief support from the sliding element and guide means.

In testimony whereof I have hereunto affixed my signature.

OSCAR V. PAYNE. 

